The right to search for truth implies also a duty; one must not conceal any part of what one has recognized to be true.
--Albert Einstein
Mandatory for science, generally advisable for anything else.
This advice is worse than useless. But coming from someone who was instrumental in the "Physicists have figured a way to efficiently eradicate humanity; let's tell the politicians so they may facilitate!" movement, it's not surprising.
Protip: the maxim "That which can be destroyed by the truth, should be" does not mean we should publish secrets that have a chance of ending global civilization.
Here's the new thread for posting quotes, with the usual rules: